514 ADDITIONS AND CORRECTIONS. 



long) cuneatc-obovato, entire, mostly rutuse, tliick-coriiiceous, veinloss and witli raid- 

 rib indiistinct, obscurely if ut all puiiotatu : heads in small coiymbuse tcrminul clus- 

 ters, 4 or 5 lines loiii,', al)out lU-llovverotl : scales of the turbinate involucre numer- 

 ous and regularly imbricated ; all of the inner ones broadly linear, coriaceous, 

 rather obtuse, destitute of green tips; the outer shorter, greenish, and gradually 

 passing into roundish rigid scale-like bractlets : ajipendages of the style-branches 

 slender-subulate, as long as the stigmatic portion and narrower : akenes silky-hairy. 

 — Proc. Am. Acad. xi. 74. 



Tantillas Mountains, near the entrance of the Great Cahon, below the southern boundary of 

 the State, Palmer. Too closely resembles Ajdopappas caucatus, p. 312 ; but not balsamic-resin- 

 ous ; leaves almost ilotless ; head.s .smaller, I'ewer-tlowered, and rayless ; akene shelter and with 

 silky pubescence, and slender bristles of the pappus not thickened toward the tips. 



2. B. arborescens, Gray. Foot-hills of the Sierra Nevada in Calaveras Co., 

 Lemmuii, 1875. 



3*. B. brachylepis, (iray. liesembles li. Cooperi : heads larger and broader, 

 4 or 5 linea lung, 8- 12-lluwcred, corymbose or thyrsoid, or terminating short-leaved 

 branchlcts : scales of the campanulate involucre all obtuse, many with resinous- 

 glandular thickened midrib, the innermost not exceeding the linear akenes : style- 

 appendages slender-subulate, obtusish. 



Ijukens' Station, «0 miles east by north of San Die-^o, Dr. I'ahner. Shrub 4 to 6 feet hi<?h, 

 fastiyialcly branched. Al^l^) nscmbles Jl. tcrdiJ'oUa in foliage and in tiaces of glands to the invo- 

 lucre. 



8. B. paniculata. Gray. San Bernardino County, Parry. Also Southern 

 Utah, Paimfr. 



9. B. graveolens, Gray, has been found as far west as Kern Co., Rothrock. 



10. B. Douglasii, <!riiy. To the varieties must be added a most distinct and 

 remarkable un(!, 



Var. stenophylla, Gray. Leaves all from very narrowly linear to iiliform, 

 smooth : heads narrower, oftener only 4-llowered. 



N. W. Nevada C /ra^i'y/t, Leminon, &c.) to borders of Lower California, Palmer. Terhaps a 

 distinct species. 



Page 324. 21. ASTER. 



10^ A. SBStivus, Ait. (!) ]\Iinutely pubescent or nearly glabrous: leaves nar- 

 rower and heads more paniculate than in A. iJout/lasii : scales of the involucre 

 narrower, the outer all linear, nuunly green. — A. laxifoiias, Nees. A. Doaylasii, 

 DC. in part. 



Moist grounds, mountains of San Diego Co. {Cleveland) ; Southern Sierra Nevada, Tulare Co., 

 &c., Rothruck. Not uncommon far eastward and northward. 



IG. A. spinosus, 15enth. Glabrou.s, 2 or 3 feet high, Avith slender virgate or 

 rush-like l)ranches, terminated by single naked heads, bearing also some sofl-spines- 

 cent branchlets below : hsaves small and linear, or reduced to minute subulate scah:s, 

 at length deciduous : heads 3 lines long : scales of the involucre subulate : rays 

 rather short, whitish: akenes glabrous. — PI. JIartw. 20; Torr. & Gray, I'l. ii. 105. 



Interior of San Diego Co., Palmer. Extends through Arizona to Texas and into Mexico. 



Page 333. 25. BACCHARIS. 



8. B. brachyphylla, Gray. Minutely roughish-puberulent : slender and dilfuse 

 branches 2 or 3 feet long from a woody base, beset with small linear or lanceolate 

 subulate leaves (the lower half an inch long, the upper reduced to scale-like bracts 

 less than a line long), bearing loosely paniculate heads : involucre 2 lines high ; the 



